Abstract: Described here are devices, systems, and methods for applying pulsed or modulated electric fields to tissue. In some variations, a device may comprise a first elongate body comprising a lumen, a second elongate body at least partially positioned within the lumen, and an expandable member rolled about the second elongate body. The expandable member may comprise an inner end coupled to the second elongate body, an outer end coupled to the first elongate body, and an electrode array.

Abstract: A three-dimensional printing kit can include a particulate build material, a binding agent, and a supportive coating agent. The particulate build material can include from about 80 wt % to about 100 wt % metal particles based on the total weight of the particulate build material. The binding agent can include binder particles dispersed in a binder liquid vehicle. The supportive coating agent can include ceramic particles having a negative coefficient of thermal expansion, a gelling compound, and a supportive coating liquid vehicle.

Abstract: Systems and methods for detecting errors in a data transfer uses a machine learning model to identify potential anomalies in the data transfer based on metadata. Mismatches between input data from the data transfer and output data after importing the data transfer may additionally be identified. User review and correction of data errors and potential anomalies identified using the machine learning model may be proactively prompted to ensure any errors or discrepancies are addressed before finalizing the import of the data transfer. User corrections are further used to retrain the machine learning model to enable continuous improvement and learning from the data transfer process.

Abstract: A powder bed material can include from 80 wt % to 100 wt % metal particles having a D50 particle size distribution value from 4 ?m to 150 ?m. From 10 wt % to 100 wt % of the metal particles can be surface-activated metal particles having in intact inner volume and an outer volume with structural defects. The structural defects can exhibit an average surface grain density of 50,000 to 5,000,000 per mm2.

Abstract: Described here are devices, systems, and methods for applying pulsed or modulated electric fields to tissue. In some variations, a device may comprise a first elongate body comprising a lumen, a second elongate body at least partially positioned within the lumen, and an expandable member rolled about the second elongate body. The expandable member may comprise an inner end coupled to the second elongate body, an outer end coupled to the first elongate body, and an electrode array.

Abstract: A method of three-dimensional printing can include iteratively applying metal particles having a heat fusion temperature as individual build material layers, and based on a 3D object model, iteratively and selectively applying a metallic binding agent onto the individual build material layers so that the individual build material layers are built up and bound together to form a green-body object. The metallic binding agent includes an aqueous liquid vehicle and metal salt or metal oxide nanoparticles that are thermally reducible to a metal or metal alloy at an elevated metal reducing temperature that is lower than the heat fusion temperature. The method also includes iteratively and selectively applying a polymeric binding agent onto the individual build material layers at an interface between the green-body object and a support structure for the green-body object, leaving a residue at the interface.

Abstract: Various implementations disclosed herein include devices, systems, and methods that adjust a brightness characteristic of virtual content (e.g., virtual objects) and/or real content (e.g., passthrough video) in views of an XR environment provided by a head mounted device (HMD). The brightness characteristic may be adjusted based on determining a viewing state (e.g., a user's eye perception/adaptation state). A viewing state, such as a user's eye perception/adaptation state while viewing a view of an XR environment via an HMD, may respond to a brightness characteristic of the XR environment that the user is seeing, which is not necessarily the brightness characteristic of the physical environment upon which the view is wholly or partially based.

Abstract: The present disclosure relates to a three-dimensional printing kit comprising: a powder bed material comprising polymer particles; a fusing agent comprising a radiation absorber and a liquid carrier; and a magnetic marking agent comprising magnetic nanoparticles, a humectant and a liquid carrier, wherein the concentration of magnetic nanoparticles is 5 to 70 weight % based on the total weight of the magnetic agent. The present disclosure also relates to a method of three-dimensional (3D) printing a 3D printed object. The method comprises: selectively applying a magnetic marking agent onto powder bed material, wherein the powder bed material comprises polymer particles, and wherein the magnetic marking agent comprises magnetic nanoparticles and a liquid carrier; selectively fusing the powder bed material, such that the magnetic nanoparticles are incorporated in the 3D printed object in a predetermined arrangement that forms a detectable marker in the 3D printed object.

Abstract: A shaping composition for controlling deformation of a green body object during heat fusing can include a liquid vehicle present at from 10 wt % to about 80 wt %, based on a total weight of the shape retaining composition, and a metal particulate mixture present at from about 20 wt % to about 90 wt % based on a total weight of the shaping composition. The metal particulate mixture can include aluminum-containing particulates and secondary metal-containing particulates. The metal particulate mixture can have an aluminum elemental content to secondary metal elemental content atomic ratio of about 10:1 to about 1:2.

Abstract: Examples of binder agents for a three-dimensional (3D) printing process are disclosed. In an example, the binder agent includes copper nanoparticles and a liquid vehicle. In this example, the liquid vehicle includes an antioxidant, polyethylene glycol hexadecyl ether, and a balance of water. Another example of the binder agent includes stainless steel nanoparticles and a liquid vehicle. In this example, the liquid vehicle includes polyethylene glycol hexadecyl ether, and a balance of water. Still another example of the binder agent includes nickel nanoparticles and a liquid vehicle. The liquid vehicle includes an antioxidant; a symmetric triblock copolymer including poly(ethylene oxide) and poly(propylene oxide), and a balance of water.

Abstract: A kit for three-dimensional printing a metal object is described. The kit comprises a build material and a shaping composition. The build material comprises metallic particles. The shaping composition comprises a metallic mixture for forming an intermetallic compound with the metallic particles and/or that is exothermically reactive.

Abstract: A liquid conditioning shampoo composition that is free or substantially free of silicone. The shampoo can contain a detersive surfactant, polyvinyl alcohol, a gel network, and a liquid carrier. The gel network contains a gel network surfactant, a fatty alcohol, and a liquid carrier. The conditioning shampoo composition can have similar performance characteristics to a conditioning shampoo that contains silicone.

Abstract: Described here are devices, systems, and methods for applying pulsed or modulated electric fields to tissue. In some variations, a device may comprise a first elongate body comprising a lumen, a second elongate body at least partially positioned within the lumen, and an expandable member rolled about the second elongate body. The expandable member may comprise an inner end coupled to the second elongate body, an outer end coupled to the first elongate body, and an electrode array.

Abstract: Described here are devices, systems, and methods for applying pulsed or modulated electric fields to tissue. In some variations, a device may comprise a first elongate body comprising a lumen, a second elongate body at least partially positioned within the lumen, and an expandable member rolled about the second elongate body. The expandable member may comprise an inner end coupled to the second elongate body, an outer end coupled to the first elongate body, and an electrode array.

Abstract: The present disclosure describes three-dimensional printing kits, three-dimensional printing systems, and methods of making three-dimensional printed objects. In one example, a three-dimensional printing kit can include a build material and a binding agent. The build material can include particles of copper or a copper alloy. The binding agent can include water, copper (II) nitrate or a hydrate thereof, and a reaction inhibition additive. The additive can be a copper oxide etchant, a water-soluble phosphate-containing compound, or a combination thereof.

Abstract: A powder bed material can include from 80 wt % to 100 wt % metal particles having a D50 particle size distribution value from 4 ?m to 150 ?m. From 10 wt % to 100 wt % of the metal particles can be surface-activated metal particles having in intact inner volume and an outer volume with structural defects. The structural defects can exhibit an average surface grain density of 50,000 to 5,000,000 per mm2.

Abstract: A three-dimensional printing kit can include a particulate build material with from about 80 wt % to 100 wt % copper-containing build particles having a D50 particle size distribution value from about 1 ?m to about 150 ?m, a binding agent including a build binder to apply to particulate build material layers to form a green body object, and a shaping composition to apply to a surface of the green body object and to control green body object deformation. The shaping composition can include from about 10 wt % to about 80 wt % liquid vehicle and from about 20 wt % to about 90 wt % metal shaping particles having a D50 particle size distribution value from about 100 nm to about 100 ?m. The metal shaping particles can be smaller than the copper-containing build particles.

Abstract: Improved media processing techniques includes media data formats with a “convenience” sample having both a snapshot and a delta description of a scene at the same media time. In other examples, improved media processing techniques include creating a temporary media sample having a merged snapshot or a merged delta in a context of a pre-render thread to improve performance of rendering performed in a context of a separate rendering thread.

Abstract: A shaping composition for controlling deformation of a green body object can include from about 10 wt % to about 80 wt % liquid vehicle, and from about 10 wt % to about 90 wt % metal particulates. The metal particulates can include from about 35 wt % to about 90 wt % high melting point metal particles, from about 10 wt % to about 65 wt % aluminum alloy particles, and from about 0.1 wt % to about 10 wt % metal complex selected from an inorganic metal salt, an organic metal salt, or a metal oxide. The metal of the metal complex can include copper, iron, aluminum, chromium, titanium, cobalt, silver, gold, nickel, tin, or zinc.

Abstract: The present disclosure relates to a conductive trace precursor composition comprising a metal salt; 3 to 15 weight % of a reducing solvent selected from a lactam and/or a polyol, and water. Where the reducing solvent is 2-pyrrolidinone, the 2-pyrrolidinone is not present in an amount of 5 weight % or in an amount of 7.5 weight % of the conductive trace precursor composition.